Scale.



AfDE VILBISS SCALE. APPLICATION FILED APR. 24, 1905.

Patented Feb. 15 1910.

. with knife edge bearings 5 arrange ALLENDE vnaarss, 1a., or TOLEDO,

utility of my form will be apparent from the description here screw 9 UNITED STATES PATENT OFFICE.

OHIO, ASSIGNOR TO TOLEDOQGOMIBIJITING SCALE COMPANY, OF TOLEDO, OHIO, A CORPORATION OF NEW JERSEY.

SCALE.

Patented Feb. 15,1910.

mama filed April 24, 1905. Serial No. 257,199.

To ail whom it may concern:

Be it known that I, ALLEN DE VILBISS, Jr., a citizen of the United States, residing at Toledo, in the county of- Lucas and State of Ohio, have invented certain newand useful Improvementsin Scales, of which the following is a specification. My invention relates to scales and more particularly to'that type or character thereof known as postal scales for the weighin of mailor postal matter, and. the object o my invention is to producean efiicient, reliable and compact scale of this character.

The various advantages and points of and construction of scale inafter given.

Figure 1 is a perspective view of my postal scale with a portion thereof removed and illustrated in the peripective view,Fig. 2;

Fig. 3 a perspective 0 my scale completely assembled and ready for. use.

Accordingto the present embodiment of my invention, as'illustratedin the drawing, the scale comprises a base or suitable support such as the fiat late 1,. from which rise two parallel stan whose free upper ends are rovi suitable bearings 3. These carings support the'main lever 4 of the scale, rovided to rest in the bearings 3. at the upper ends of the standards 2, as described. In the present instance, and by preference, the main lever is formed of two arallel bars, from Whose outer ends lateral y'project the knife edge bearings 6, which are upwardly directed, whereas the bearings 5 are downwardly directed. y I 1 The main lever 4 of the scale is provided with a counterbalance at the left-hand side (Fig. 2) of-the bearings 5 and depending from suchlever on that side of such axis or bearings. In addition, the main lever is rovided with another counterbalance 8 w ich may be em loyed.

the main lever 4; by screw threading upon a from such main projecting laterally lever, as clearly indicated in Figs. 2 and 3.

The object of the bearings 6 of the main lever is to pivotally. support the platform ards or supports ed wit is provided with an additional arm 16 7 connected thereto which, in the pan or platform 11, which'may be found convenient for receivingand holding the mail matter. This platform frame is provided with bearings 12 to cotiperate with the knife edge bearings 6 and as shown in is provided with long dependin lel arms 13, whose lower end s terminate nearthe base 1 of the scale, the resulting structure being a substantially inverted U- shaped frame with the latform proper supported at the upper-end thereof. i

Upon one of-the standards or supports 2 is secured a scale 14, which isproperly graduated, in the present instance, being graduatgd by sixteen divisions representing sixteen ounces, as shown in Fig. 3. Vith thi'sscale cooperates the pointer or indicator 15, whichis operatively connected with the lower ends of the depending arms 13. In the presentinst-ance, the pointer is connected with such depending arms by means of a oke-shaped lever 16, the forks of which yo e are pivotally connected to the .lower ends of the depending arms, while' a laterally extending .arm 16 is connected with the pointer near its lower end. The yoke parallel to the arm 1d and pivoted upon a rod or shaft 17 passing transversely through the front standard 2 and forming'the fulcrum of the yoke and the axls of the pointer 15.

In the present instance, and by-preference, I the scale is provided with. a

which, as shown, is arranged between the depending arms 13, with its piston rod 19 connected with such arms, in thepresent instance, to the cross bar 20 extending between thearms near their upperends, As shown in Figs. 1 and 3 the base 1 ofthe be provided with suitable means for leveling the scale, such as the adjustingscrew 21.

The operation of the scale will be readily understood from the foregoing description and it will, therefore, sufiice to say that, assuming that the weight 8 has been adjusted so as-to cause the pointer 15 to indicate zero under normal conditions, the pointer will move or sweep over the scale or'dial 14 to indicate the weight of the load on the platform, it being apparent from the construction shown and'uiescribed that the scale willaccurately" indicate the weight, the pointer Figs. 1 and 3 such frameand paral- 1 present instance, consists of a frame 10, arranged to support a dash pot 18 l scale may pot cylinder between said yokearms,

, counterbalancing I lever, arms depending from the platform'on opposite sides of the lever,

those de ending from theplat or indicator having a considerable sweep and the dial having rather wide g'raduations. Moreover, the weight can be veryeasily read by the operator and furthermore, by reason of the provision of the dash pot the delicate and accurate working of the parts of the scale cannot be interfered with by rough usage, as by suddenly throwing the load on and off the platform.

I claim: i

1. The combination of a suitable support or frame-work, a lever pivotally mounted at the upper part thereof, a platform mounted upon said lever to one side of its pivot, loadcounterbalancing means applied to said lever, arms depending from the platform on opposite sides of the lever, a yoke pivoted to the frame-work at the lower part thereof and having arms jointed respectively to those depending from the platform, a dashan a piston rod connected to the platform arms.

'2. The combination of a suitable support or frame-Work, a 'lever-pivotally mounted at the upper part thereof, a platform mounted upon said. lever to one side of its ivot, a counterbalancing weight, carried lever on the opposite side of its pivot, load means applied to said a yoke pivoted to the frame-work at the lower part thereof and having arms jointed res ectively to on the rame, and a pointer moving with the yoke and extending over said dial.

3. The combination of a suitable support or frame-work, a lever pivotally mounted at the upper part thereof, a platform mounted upon said lever to one side of its pivot, a

y said orm, a dial lever on the opposite side dulum weight depending counterbalancing weight carried by said of its pivot, a penfrom the lever, arms depending from the platform on opp0 site sides of the lever, frame-work at the lower part thereof and having arms jointed respectively to those depending from the platform, a dial on the frame, and a pointer moving with the yoke and extending over said dial.

e The combination of a suitable support or frame;work, a lever piuotally'mounted at the upper part thereof, .a platform'mounted on said lever to one side of its pivot, a counter-balancing weight carried by said lever on the opposite side of its pivot, load counter-balancing means applied to said lever, an inverte U-shaped frame depending from said platform, a double yoke one pair of whose arms are jointed to the legs of the said -U-shaped frame and the other pair of Whose arms are pivoted to the lower part of the supporting frame-work, a dial on the latter, a pointer concentrically movable with said yoke, a dash-pot cylinder between the outer arms of the latter, and a piston rod connected to the inverted U-shaped platform frame.

5. In a scale, the combination of a main lever, a scale platform ivoted thereon and having a pair of depen ing arms, a pointer or indicator, 0 erating connections between the pointer an thelower end of such arms, a cross bar 20 near the upper ends of such arms, and a dash pot operatively connected with such bar.

ALLEN DE VILBISS, J n.

\Vitnesses:

S. E. HIBBEN, -LOUIS B. ERWIN.

a yoke pivoted to the 

